Earth Science 6 Unit 3 Test Review

Which principle states that rock layers with the same unique grouping of fossils are of the same geologic age?

• fossil horizontality
• fossil superposition
• faunal succession
• fossil correlation

What causes the youngest layers to be on top?

• sedimentation
• faulting
• erosion
• tilting

Which was the principle that James Hutton founded while observing erosion and deposition?

• Volcanism
• Superposition
• Glaciation
• Uniformitarianism

What type of environment is ideal for the preservation of a leaf print?

• rock
• lava
• water
• mud

Which of these is classified as a body fossil?

• footprint of a stone-aged individual
• a worm trail
• ancient shark vertebra
• fossilized bird droppings

Layers of sediment are usually deposited by ___________.

• tornadoes
• earthquakes
• volcanic eruptions
• water flow

The rate of decay of carbon-14 is called _________________.

• radioactivity
• half-life
• isotope
• lifetime

Why is carbon-14 not used to determine the age of the Earth?

• It does not decay
• Its half-life is too long
• Its half-life is too short
• It is a stable isotope

What can be used to determine the relative age of two rocks?

• the presence of unconformities
• the order of the layers that the rocks are found in
• the relative age cannot be determined
• radioactive dating of each layer

Which of the rock types would you be more likely to find a fossil in?

• Sedimentary
• Metamorphic
• Igneous